Well, a major theme is the conflict between good and evil within Harry himself. Since he's the son of Voldemort, he has that 'evil' blood in him, but he also has the qualities of a hero. Also, secrecy and revelation play a part. How and when does Harry find out about his true parentage? And what are the consequences of this revelation? Another theme could be the rewriting of the prophecy. If Harry is Voldemort's son, how does that change the prophecy that was so central to the original story?
The most common theme is probably the struggle for acceptance. Harry has to accept his new identity as Voldemort's son, which is not easy considering Voldemort's reputation. Family also becomes a complex theme. He has a new family connection that he never expected, and this changes how he views family in general. And there's often a theme of power. Harry might have different powers or a different relationship with magic because of his new heritage. This can lead to him being either feared or revered in the wizarding world, and he has to deal with those reactions from others.
One common theme is identity crisis. Harry would be constantly questioning who he really is. Another is the power struggle. Since he's related to Voldemort, he might have access to more power but also has to fight against the dark side of it.
In the world of Harry Potter fanfiction, it's highly possible. The fanfiction community often takes the established characters and storylines and twists them in unique ways. The relationship between Harry and Voldemort is already central to the original series, so imagining Harry as Voldemort's lost son is a way to expand on that relationship in a completely new and unexpected direction. It could lead to all sorts of interesting plot developments, such as how Harry would deal with this newfound identity, how the wizarding world would react, and what it would mean for the ongoing battle between good and evil.
One possible plot could be that Harry discovers his true identity gradually. At first, he might notice strange similarities between himself and Voldemort, like certain magical abilities that are more in line with the Dark Lord's. Then, as he digs deeper, he has to face the internal conflict of his new identity and decide whether to embrace it or fight against it.
Well, identity is a huge one. Harry has to reevaluate everything he thought he knew about himself. There's also the theme of power. Since Voldemort was so powerful, questions might arise about Harry's latent powers. Also, themes of love and hate get muddled. Harry might question if he's capable of the same kind of hate as Voldemort, or if there's a different kind of love within his family that he's yet to discover. This makes for some very complex and interesting stories.
Yes, there are some out there. You can try searching on popular fanfiction websites like FanFiction.net or Archive of Our Own. However, this concept is quite a departure from the original Harry Potter storyline and often involves some very creative interpretations of the characters' relationships and backstories.
One common theme is identity struggle. Harry has to figure out who he is in relation to being Voldemort's son. Another theme could be redemption. Maybe Harry tries to make up for his father's evil deeds. And there's often the theme of power. Whether Harry has the same kind of power as Voldemort or a different, more controlled power.
One common theme is redemption. Maybe Voldemort has a chance at redemption through his relationship with Harry. Another theme is the power of love. It could be that their love is so strong that it can change the course of the wizarding war. Also, identity exploration is a big one. Harry has to figure out who he is now that he has this new relationship with Voldemort.
One common theme is identity crisis. Hermione would have to grapple with who she really is. Another is the power struggle. Given Voldemort's obsession with power, how would Hermione, being his daughter, deal with her own potential power? And there's also the theme of acceptance or rejection within the wizarding community, as she is a muggle - born who is now supposedly related to the most feared dark wizard.
One main theme is identity crisis. Harry has to grapple with who he really is if he's Voldemort's son. Another theme could be redemption. Maybe Voldemort has a change of heart due to his connection with Harry. And also, the theme of power is often explored, as Harry might inherit some of Voldemort's dark magic powers and has to decide what to do with them.
Redemption is also a theme. Many of these fanfictions explore the idea of whether the son can break free from his father's evil and find a way to be good. For example, he might use his power for good instead of evil. This shows the power of choice and the potential for change. It's like a battle between nature and nurture. He has the blood of Voldemort, but can he rise above it? That's what makes these stories so interesting.